gd-libgd / src / pngtogd.c

#include "config.h"

#include <stdio.h>
#include <stdlib.h>
#include "gd.h"

/* A short program which converts a .png file into a .gd file, for
   your convenience in creating images on the fly from a
   basis image that must be loaded quickly. The .gd format
   is not intended to be a general-purpose format. */

main (int argc, char **argv)
	gdImagePtr im = NULL;
	FILE *in, *out;
	if (argc != 3) {
		fprintf (stderr, "Usage: pngtogd filename.png\n");
		exit (1);
	in = fopen (argv[1], "rb");
	if (!in) {
		fprintf (stderr, "Input file does not exist!\n");
		exit (1);
	im = gdImageCreateFromPng (in);
	fprintf (stderr, "No PNG library support available.\n");
	fclose (in);
	if (!im) {
		fprintf (stderr, "Input is not in PNG format!\n");
		exit (1);
	out = fopen (argv[2], "wb");
	if (!out) {
		fprintf (stderr, "Output file cannot be written to!\n");
		gdImageDestroy (im);
		exit (1);
	gdImageGd (im, out);
	fclose (out);
	gdImageDestroy (im);

	return 0;
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.